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Synovial Fluid Analysis to Identify Osteoarthritis
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Synovial Fluid Analysis to Identify Osteoarthritis

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Dishevelled‑2 modulates osteogenic differentiation of human synovial fibroblasts in osteoarthritis

Lihua Zhang1, Luan Luan1, Yingying Ma1

  • 1Department of Rheumatology, Jining No. 1 People's Hospital, Jining, Shandong 272000, P.R. China.

Molecular Medicine Reports
|May 12, 2018
PubMed

Insights

Dishevelled-2 (Dvl-2) regulates osteogenic differentiation in synovial fibroblasts during osteoarthritis. Its depletion impacts key bone formation markers, suggesting a role in OA pathogenesis.

Area of Science:

  • Cell Biology
  • Molecular Biology
  • Biochemistry

Background:

  • Dishevelled-2 (Dvl-2) is a key cytoplasmic protein in Wnt signaling pathways.
  • Synovial fibroblasts (SFBs) play a role in osteoarthritis (OA) pathogenesis.
  • Understanding Dvl-2's role in SFBs is crucial for OA research.

Purpose of the Study:

  • To investigate the roles and mechanisms of Dvl-2 in synovial fibroblasts (SFBs) within the context of osteoarthritis (OA).
  • To elucidate how Dvl-2 influences the osteogenic differentiation of SFBs in OA.

Main Methods:

  • Cell Counting kit-8 (CCK-8) assay for cell viability.
  • Alkaline phosphatase (ALP) activity assay.
  • Western blot and RT-qPCR for protein and mRNA expression analysis.
  • Dvl-2 depletion and overexpression experiments.
  • Wnt3a inactivation.

Main Results:

  • Dvl-2 depletion decreased osteoprotegerin (OPG) and ALP expression.
  • Dvl-2 depletion increased receptor activator of nuclear factor-κB ligand (RANKL), osteonectin (ON), osteocalcin (OCN), and osterix expression.
  • Dvl-2 depletion inhibited runt-related transcription factor 2 (Runx-2) and β-catenin expression.
  • Dvl-2 overexpression had opposite effects to silencing.
  • Wnt3a inactivation reversed Dvl-2 silencing effects.

Conclusions:

  • Dvl-2 plays a significant role in regulating the osteogenic differentiation of synovial fibroblasts in osteoarthritis.
  • Dvl-2 acts as a regulator of bone formation markers in SFBs during OA.
  • Targeting Dvl-2 may offer therapeutic potential for OA.

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